<!doctype html>
<html>
<head>
<meta charset='UTF-8'><meta name='viewport' content='width=device-width initial-scale=1'>
<title>cloud_02</title><style type='text/css'>html {overflow-x: initial !important;}:root { --node-fill: #ECECFF; --node-border: #CCCCFF; --cluster-fill: #ffffde; --cluster-border: #aaaa33; --note-fill: #fff5ad; --note-border: #aaaa33; --mermaid-color: var(--text-color); }


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iframe { margin: auto; }
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table tr th { border-bottom: 0px; }
video { max-width: 100%; display: block; margin: 0px auto; }
iframe { max-width: 100%; width: 100%; border: none; }
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mark .md-meta { color: rgb(0, 0, 0); opacity: 0.3 !important; }
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.cm-error { color: red; }
.cm-invalidchar { color: red; }
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div.CodeMirror span.CodeMirror-matchingbracket { color: rgb(0, 255, 0); }
div.CodeMirror span.CodeMirror-nonmatchingbracket { color: rgb(255, 34, 34); }
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.CodeMirror { position: relative; overflow: hidden; }
.CodeMirror-scroll { height: 100%; outline: 0px; position: relative; box-sizing: content-box; background: inherit; }
.CodeMirror-sizer { position: relative; }
.CodeMirror-gutter-filler, .CodeMirror-hscrollbar, .CodeMirror-scrollbar-filler, .CodeMirror-vscrollbar { position: absolute; z-index: 6; display: none; }
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}

html, body {
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body {
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@media print {
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h1 {
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h1 {
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h2 {
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h3 {
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h1, 
h2, 
h3{
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h2:after{
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h1+h2, h2+h3 {
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p,
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pre {
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	padding-bottom: 8px;
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	margin-bottom: 1.5em;
}

a {
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	text-decoration: none;
}
a:hover {
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a img {
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}
h1 a,
h1 a:hover {
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	text-decoration: none;
}
hr {
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	height: 1px;
	margin: 2em 0;
	border-top: solid 1px #ddd;
	border-bottom: none;
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	border-right: 0;
}
.ty-table-edit {
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    padding-top: 4px;
}
table {
	margin-bottom: 1.333333rem
}
table th,
table td {
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	line-height: 1.333333rem;
	vertical-align: top;
	border-top: 1px solid #ddd
}
table th {
	font-weight: bold
}
table thead th {
	vertical-align: bottom
}
table caption+thead tr:first-child th,
table caption+thead tr:first-child td,
table colgroup+thead tr:first-child th,
table colgroup+thead tr:first-child td,
table thead:first-child tr:first-child th,
table thead:first-child tr:first-child td {
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}
table tbody+tbody {
	border-top: 2px solid #ddd
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.md-task-list-item > input:before {
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	width: 1.33333333rem;
  	height: 1.6rem;
	vertical-align: middle;
	text-align: center;
	color: #ddd;
	background-color: #fefefe;
}

.md-task-list-item > input:checked:before,
.md-task-list-item > input[checked]:before{
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}
.md-tag {
	color: inherit;
	font: inherit;
}
#write pre.md-meta-block {
	min-height: 35px;
	padding: 0.5em 1em;
}
#write pre.md-meta-block {
	white-space: pre;
	background: #f8f8f8;
	border: 0px;
	color: #999;
	
	width: 100vw;
	max-width: calc(100% + 60px);
	margin-left: -30px;
	border-left: 30px #f8f8f8 solid;
	border-right: 30px #f8f8f8 solid;

	margin-bottom: 2em;
	margin-top: -1.3333333333333rem;
	padding-top: 26px;
	padding-bottom: 10px;
	line-height: 1.8em;
	font-size: 0.9em;
	font-size: 0.76em;
	padding-left: 0;
}
.md-img-error.md-image>.md-meta{
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}
#write>h5.md-focus:before {
	top: 2px;
}

.md-toc {
	margin-top: 40px;
}

.md-toc-content {
	padding-bottom: 20px;
}

.outline-expander:before {
	color: inherit;
	font-size: 14px;
	top: auto;
	content: "\f0da";
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<div id='write'  class=''><p>&nbsp;</p><p>&nbsp;</p><h1><a name="kubernetes" class="md-header-anchor"></a><span>kubernetes</span></h1><div class='md-toc' mdtype='toc'><p class="md-toc-content" role="list"><span role="listitem" class="md-toc-item md-toc-h1" data-ref="n3"><a class="md-toc-inner" href="#kubernetes">kubernetes</a></span><span role="listitem" class="md-toc-item md-toc-h2" data-ref="n5"><a class="md-toc-inner" href="#kubectl-管理命令">kubectl 管理命令</a></span><span role="listitem" class="md-toc-item md-toc-h3" data-ref="n6"><a class="md-toc-inner" href="#管理命令一）">管理命令（一）</a></span><span role="listitem" class="md-toc-item md-toc-h4" data-ref="n37"><a class="md-toc-inner" href="#命令示例">命令示例</a></span><span role="listitem" class="md-toc-item md-toc-h1" data-ref="n41"><a class="md-toc-inner" href="#pod详解">POD详解</a></span><span role="listitem" class="md-toc-item md-toc-h3" data-ref="n43"><a class="md-toc-inner" href="#导入自定义镜像">导入自定义镜像</a></span><span role="listitem" class="md-toc-item md-toc-h2" data-ref="n46"><a class="md-toc-inner" href="#pod-生命周期">Pod 生命周期</a></span><span role="listitem" class="md-toc-item md-toc-h2" data-ref="n49"><a class="md-toc-inner" href="#pod创建过程">POD创建过程</a></span><span role="listitem" class="md-toc-item md-toc-h3" data-ref="n53"><a class="md-toc-inner" href="#管理命令二）">管理命令（二）</a></span><span role="listitem" class="md-toc-item md-toc-h4" data-ref="n75"><a class="md-toc-inner" href="#继续创建pod">继续创建POD</a></span><span role="listitem" class="md-toc-item md-toc-h4" data-ref="n79"><a class="md-toc-inner" href="#排错练习案例2">排错练习(案例2)</a></span><span role="listitem" class="md-toc-item md-toc-h3" data-ref="n81"><a class="md-toc-inner" href="#管理命令三）">管理命令（三）</a></span><span role="listitem" class="md-toc-item md-toc-h4" data-ref="n107"><a class="md-toc-inner" href="#命令示例-n107">命令示例</a></span><span role="listitem" class="md-toc-item md-toc-h3" data-ref="n109"><a class="md-toc-inner" href="#pod资源对象文件">Pod资源对象文件</a></span><span role="listitem" class="md-toc-item md-toc-h4" data-ref="n110"><a class="md-toc-inner" href="#使用资源对象文件定义pod">使用资源对象文件定义Pod</a></span><span role="listitem" class="md-toc-item md-toc-h4" data-ref="n114"><a class="md-toc-inner" href="#如何创建多容器-pod">如何创建多容器 Pod</a></span><span role="listitem" class="md-toc-item md-toc-h4" data-ref="n116"><a class="md-toc-inner" href="#创建静态pod">创建静态pod</a></span><span role="listitem" class="md-toc-item md-toc-h4" data-ref="n118"><a class="md-toc-inner" href="#自定义命令">自定义命令</a></span></p></div><h2><a name="kubectl-管理命令" class="md-header-anchor"></a><span>kubectl 管理命令</span></h2><h3><a name="管理命令一）" class="md-header-anchor"></a><span>管理命令（一）</span></h3><p><span>kubectl是用于控制k8s集群的命令行工具</span></p><figure><table><thead><tr><th><strong><span>子命令</span></strong></th><th><strong><span>说明</span></strong></th><th><strong><span>备注</span></strong></th></tr></thead><tbody><tr><td><span>help</span></td><td><span>用于查看命令及子命令的帮助信息</span></td><td>&nbsp;</td></tr><tr><td><span>cluster-info</span></td><td><span>显示集群的相关配置信息</span></td><td>&nbsp;</td></tr><tr><td><span>version</span></td><td><span>查看服务器及客户端的版本信息</span></td><td>&nbsp;</td></tr><tr><td><span>api-resources</span></td><td><span>查看当前服务器上所有的资源对象类型</span></td><td>&nbsp;</td></tr><tr><td><span>api-versions</span></td><td><span>查看当前服务器上所有资源对象的版本</span></td><td>&nbsp;</td></tr><tr><td><span>config</span></td><td><span>管理当前节点上kubeconfig 的认证信息</span></td><td>&nbsp;</td></tr></tbody></table></figure><h4><a name="命令示例" class="md-header-anchor"></a><span>命令示例</span></h4><pre spellcheck="false" class="md-fences md-end-block ty-contain-cm modeLoaded" lang="shell" style="break-inside: unset;"><div class="CodeMirror cm-s-inner CodeMirror-wrap" lang="shell"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 0px; left: 4.16667px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: none;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 0px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: none;"><div class="CodeMirror-measure"><pre><span>xxxxxxxxxx</span></pre></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: 0px; width: 0px;"></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment"># 查看帮助命令信息</span></span></pre></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># kubectl help version</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">Print the client and server version information <span class="cm-keyword">for</span> the current context.</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">Examples:</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;<span class="cm-comment"># Print the client and server versions for the current context</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">  kubectl version</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">... ...</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment"># 查看集群状态信息</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># kubectl cluster-info </span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">Kubernetes control plane is running at https://192.168.1.50:6443</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">CoreDNS is running at https://192.168.1.50:6443/api/v1/namespaces/kube-system/services/kube-dns:dns/proxy</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">... ...</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment"># 查看服务端与客户端版本信息</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># kubectl version </span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">Client Version: version.Info{Major:<span class="cm-string">"1"</span>, Minor:<span class="cm-string">"22"</span>, GitVersion:<span class="cm-string">"v1.22.5"</span>, GitCommit:<span class="cm-string">"5c99e2ac2ff9a3c549d9ca665e7bc05a3e18f07e"</span>, GitTreeState:<span class="cm-string">"clean"</span>, BuildDate:<span class="cm-string">"2021-12-16T08:38:33Z"</span>, GoVersion:<span class="cm-string">"go1.16.12"</span>, Compiler:<span class="cm-string">"gc"</span>, Platform:<span class="cm-string">"linux/amd64"</span>}</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">Server Version: version.Info{Major:<span class="cm-string">"1"</span>, Minor:<span class="cm-string">"22"</span>, GitVersion:<span class="cm-string">"v1.22.5"</span>, GitCommit:<span class="cm-string">"5c99e2ac2ff9a3c549d9ca665e7bc05a3e18f07e"</span>, GitTreeState:<span class="cm-string">"clean"</span>, BuildDate:<span class="cm-string">"2021-12-16T08:32:32Z"</span>, GoVersion:<span class="cm-string">"go1.16.12"</span>, Compiler:<span class="cm-string">"gc"</span>, Platform:<span class="cm-string">"linux/amd64"</span>}</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment"># 查看资源对象类型</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># kubectl api-resources </span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">NAME &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; SHORTNAMES &nbsp; &nbsp; APIVERSION &nbsp; &nbsp;  NAMESPACED &nbsp; &nbsp;  KIND</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">bindings &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;  v1 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-atom">true</span> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;  Binding</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">endpoints &nbsp; &nbsp; &nbsp;  ep &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; v1 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-atom">true</span> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;  Endpoints</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">events &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ev &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; v1 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-atom">true</span> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;  Event</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">... ...</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment"># 查看资源对象版本</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># kubectl api-versions </span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">admissionregistration.k8s.io/v1</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">apiextensions.k8s.io/v1</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">apiregistration.k8s.io/v1</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">apps/v1</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">... ...</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment"># 查看当前认证使用的用户及证书</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># kubectl config view </span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" class="cm-tab-wrap-hack" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># kubectl config get-users <span class="cm-tab" role="presentation" cm-text="	">  </span><span class="cm-tab" role="presentation" cm-text="	">    </span>#查看用户</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">NAME</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">kubernetes-admin</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" class="cm-tab-wrap-hack" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># kubectl config get-clusters <span class="cm-tab" role="presentation" cm-text="	">   </span>#查看集群</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">NAME</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">kubernetes</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" class="cm-tab-wrap-hack" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># kubectl config get-contexts <span class="cm-tab" role="presentation" cm-text="	">   </span></span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">CURRENT &nbsp; NAME &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;  CLUSTER &nbsp; &nbsp;  AUTHINFO &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; NAMESPACE</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">* &nbsp; &nbsp; &nbsp; &nbsp; kubernetes-admin@kubernetes &nbsp; kubernetes &nbsp; kubernetes-admin &nbsp; </span></pre></div></div></div></div></div><div style="position: absolute; height: 0px; width: 1px; border-bottom: 0px solid transparent; top: 1443px;"></div><div class="CodeMirror-gutters" style="display: none; height: 1443px;"></div></div></div></pre><p><span>为registry主机配置管理授权，管理k8s集群</span></p><pre spellcheck="false" class="md-fences md-end-block ty-contain-cm modeLoaded" lang="shell" style="break-inside: unset;"><div class="CodeMirror cm-s-inner CodeMirror-wrap" lang="shell"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 0px; left: 4.16667px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: none;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 0px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: none;"><div class="CodeMirror-measure"><pre><span>xxxxxxxxxx</span></pre></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: 0px; width: 0px;"></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">授权需要知道集群中各个节点的主机信息（主机名和ip），需要配置hosts文件</span></pre></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@registry ~]<span class="cm-comment"># vim /etc/hosts</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-number">192</span>.168.1.30 &nbsp;  registry</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-number">192</span>.168.1.50 &nbsp;  master</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-number">192</span>.168.1.51 &nbsp;  node-0001</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-number">192</span>.168.1.52 &nbsp;  node-0002</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-number">192</span>.168.1.53 &nbsp;  node-0003</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@registry ~]<span class="cm-comment"># yum install -y kubectl</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">配置tab键</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@registry ~]<span class="cm-comment"># kubectl completion bash &gt; /etc/bash_completion.d/kubectl</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" class="cm-tab-wrap-hack" style="padding-right: 0.1px;">[root@registry ~]<span class="cm-comment"># exit<span class="cm-tab" role="presentation" cm-text="	"> </span><span class="cm-tab" role="presentation" cm-text="	">    </span>#退出重新登录</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">使用证书授权，使registry主机可以管理k8s集群</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@registry ~]<span class="cm-comment"># mkdir -p $HOME/.kube</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" class="cm-tab-wrap-hack" style="padding-right: 0.1px;">[root@registry ~]<span class="cm-comment"># scp master:/etc/kubernetes/admin.conf $HOME/.kube/config<span class="cm-tab" role="presentation" cm-text="	"> </span>#授权</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" class="cm-tab-wrap-hack" style="padding-right: 0.1px;">[root@registry ~]<span class="cm-comment"># sudo chown $(id -u):$(id -g) $HOME/.kube/config<span class="cm-tab" role="presentation" cm-text="	">  </span>#设置所有者所属组</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@registry ~]<span class="cm-comment"># kubectl get nodes</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">NAME &nbsp; &nbsp; &nbsp;  STATUS &nbsp; ROLES &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;  AGE &nbsp; VERSION</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">master &nbsp; &nbsp;  Ready &nbsp;  control-plane,master &nbsp; 23h &nbsp; v1.22.5</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">node-0001 &nbsp; Ready &nbsp;  &lt;none&gt; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 22h &nbsp; v1.22.5</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">node-0002 &nbsp; Ready &nbsp;  &lt;none&gt; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 22h &nbsp; v1.22.5</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">node-0003 &nbsp; Ready &nbsp;  &lt;none&gt; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 22h &nbsp; v1.22.5</span></pre></div></div></div></div></div><div style="position: absolute; height: 0px; width: 1px; border-bottom: 0px solid transparent; top: 595px;"></div><div class="CodeMirror-gutters" style="display: none; height: 595px;"></div></div></div></pre><h1><a name="pod详解" class="md-header-anchor"></a><span>POD详解</span></h1><p><span>先准备环境创建一个pod，再来看原理</span></p><h3><a name="导入自定义镜像" class="md-header-anchor"></a><span>导入自定义镜像</span></h3><pre spellcheck="false" class="md-fences md-end-block ty-contain-cm modeLoaded" lang="shell" style="break-inside: unset;"><div class="CodeMirror cm-s-inner CodeMirror-wrap" lang="shell"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 0px; left: 4.16667px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: none;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 0px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: none;"><div class="CodeMirror-measure"><pre><span>xxxxxxxxxx</span></pre></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: 0px; width: 0px;"></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment"># 拷贝 public/myos.tar.xz 目录到 master 云主机上</span></span></pre></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@ecs-proxy ~]<span class="cm-comment"># scp /root/5/public/myos.tar.xz 192.168.1.50:/root/</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment"># 导入镜像，上传到私有镜像仓库</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># docker  load -i myos.tar.xz </span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># for i in nginx phpfpm v2009 httpd latest</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-keyword">do</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> docker tag myos:<span class="cm-def">$i</span> registry:5000/myos:<span class="cm-def">$i</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> docker push registry:5000/myos:<span class="cm-def">$i</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> docker rmi registry:5000/myos:<span class="cm-def">$i</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> docker rmi myos:<span class="cm-def">$i</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-keyword">done</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> </span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># docker tag centos:7 registry:5000/centos:7</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># docker push registry:5000/centos:7</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># docker rmi registry:5000/centos:7 </span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># docker rmi centos:7</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># curl http://registry:5000/v2/myos/tags/list</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">{<span class="cm-string">"name"</span>:<span class="cm-string">"myos"</span>,<span class="cm-string">"tags"</span>:[<span class="cm-string">"phpfpm"</span>,<span class="cm-string">"v2009"</span>,<span class="cm-string">"httpd"</span>,<span class="cm-string">"latest"</span>,<span class="cm-string">"nginx"</span>]}</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@registry ~]<span class="cm-comment"># curl http://registry:5000/v2/centos/tags/list</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">{<span class="cm-string">"name"</span>:<span class="cm-string">"centos"</span>,<span class="cm-string">"tags"</span>:[<span class="cm-string">"7"</span>]}</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment"># 创建 Pod，名称为myweb</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">kubectl run pod名称 [选项/参数] <span class="cm-attribute">--image</span><span class="cm-operator">=</span>镜像名称:标签</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># kubectl run myweb --image=registry:5000/myos:httpd</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">pod/myweb created</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># kubectl get pods</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">NAME &nbsp;  READY &nbsp; STATUS &nbsp;  RESTARTS &nbsp; AGE</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">myweb &nbsp; <span class="cm-number">1</span>/1 &nbsp; &nbsp; Running &nbsp; <span class="cm-number">0</span> &nbsp; &nbsp; &nbsp; &nbsp;  26s</span></pre></div></div></div></div></div><div style="position: absolute; height: 0px; width: 1px; border-bottom: 0px solid transparent; top: 822px;"></div><div class="CodeMirror-gutters" style="display: none; height: 822px;"></div></div></div></pre><p>&nbsp;</p><h2><a name="pod-生命周期" class="md-header-anchor"></a><span>Pod 生命周期</span></h2><div class="md-diagram-panel"><svg id="mermaidChart0" width="100%" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 930 292" height="292" style="max-width: 930px; height: 332px;" class="md-require-zoom-fix"><style>#mermaidChart0{font-family:"trebuchet ms",verdana,arial,sans-serif;font-size:13.19444392014435px;fill:#333333;}#mermaidChart0 .error-icon{fill:hsl(60,100%,100%);}#mermaidChart0 .error-text{fill:rgb(0,0,0);stroke:rgb(0,0,0);}#mermaidChart0 .edge-thickness-normal{stroke-width:2px;}#mermaidChart0 .edge-thickness-thick{stroke-width:3.5px;}#mermaidChart0 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critText1 width-76">main Container </text><text id="task5-text" font-size="11" x="649.5" y="159.5" text-height="20" class=" taskText taskText1  width-70.671875">liveness probe </text><text id="task6-text" font-size="11" x="649.5" y="183.5" text-height="20" class=" taskText taskText1  width-78.234375">readiness probe</text><text id="task7-text" font-size="11" x="858" y="207.5" text-height="20" class=" taskText taskText1  width-40.6875">pre stop       </text></g><g><text dy="0em" x="10" y="86" class="sectionTitle sectionTitle0"><tspan alignment-baseline="central" x="10">init</tspan></text><text dy="0em" x="10" y="182" class="sectionTitle sectionTitle1"><tspan alignment-baseline="central" x="10">main</tspan></text></g><g class="today"><line x1="113320" x2="113320" y1="25" y2="267" class="today"></line></g><text x="465" y="25" class="titleText">Pod生命周期</text></svg></div><p>&nbsp;</p><h2><a name="pod创建过程" class="md-header-anchor"></a><span>POD创建过程</span></h2><div 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tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 0px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: none;"><div class="CodeMirror-measure"><pre><span>xxxxxxxxxx</span></pre></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: 0px; width: 0px;"></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">测试创建过程，以及调度过程</span></pre></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">第一个终端查看，-o wide 查看更加详细的信息，-w持续检测</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># kubectl get pods -o wide -w</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">第二个终端创建pod</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># kubectl run web1 --image=registry:5000/myos:httpd</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">回到第一个终端查看结果</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># kubectl get pods -o wide -w</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">NAME &nbsp;  READY &nbsp; STATUS &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; RESTARTS &nbsp; AGE &nbsp; IP &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; NODE &nbsp; &nbsp; &nbsp;  NOMINATED NODE &nbsp; READINESS GATES</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">web1 &nbsp; &nbsp;<span class="cm-number">0</span>/1 &nbsp; &nbsp; Pending &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-number">0</span> &nbsp; &nbsp; &nbsp; &nbsp;  0s &nbsp;  &lt;none&gt; &nbsp; &nbsp; &nbsp; &lt;none&gt; &nbsp; &nbsp;  &lt;none&gt; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;none&gt;</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">web1 &nbsp; &nbsp;<span class="cm-number">0</span>/1 &nbsp; &nbsp; Pending &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-number">0</span> &nbsp; &nbsp; &nbsp; &nbsp;  0s &nbsp;  &lt;none&gt; &nbsp; &nbsp; &nbsp; node-0003 &nbsp; &lt;none&gt; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;none&gt;</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">web1 &nbsp; &nbsp;<span class="cm-number">0</span>/1 &nbsp; &nbsp; ContainerCreating &nbsp; <span class="cm-number">0</span> &nbsp; &nbsp; &nbsp; &nbsp;  0s &nbsp;  &lt;none&gt; &nbsp; &nbsp; &nbsp; node-0003 &nbsp; &lt;none&gt; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;none&gt;</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">web1 &nbsp; &nbsp;<span class="cm-number">1</span>/1 &nbsp; &nbsp; Running &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span class="cm-number">0</span> &nbsp; &nbsp; &nbsp; &nbsp;  1s &nbsp; &nbsp;<span class="cm-number">10</span>.244.2.4 &nbsp; node-0003 &nbsp; &lt;none&gt; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;none&gt;</span></pre></div></div></div></div></div><div style="position: absolute; height: 0px; width: 1px; border-bottom: 0px solid transparent; top: 488px;"></div><div class="CodeMirror-gutters" style="display: none; height: 488px;"></div></div></div></pre><p>&nbsp;</p><h3><a name="管理命令二）" class="md-header-anchor"></a><span>管理命令（二）</span></h3><figure><table><thead><tr><th><strong><span>子命令</span></strong></th><th><strong><span>说明</span></strong></th><th><strong><span>备注</span></strong></th></tr></thead><tbody><tr><td><span>run</span></td><td><span>创建Pod资源对象</span></td><td><span>一般用来创建 Pod 模板</span></td></tr><tr><td><span>get</span></td><td><span>查看资源对象的状态信息</span></td><td><span>可选参数:  -o 显示格式</span></td></tr><tr><td><span>describe</span></td><td><span>查询资源对象的属性信息</span></td><td>&nbsp;</td></tr><tr><td><span>logs</span></td><td><span>查看容器的报错信息</span></td><td><span>可选参数:  -c 容器名称</span></td></tr></tbody></table></figure><h4><a name="继续创建pod" class="md-header-anchor"></a><span>继续创建POD</span></h4><pre spellcheck="false" class="md-fences md-end-block ty-contain-cm modeLoaded" lang="shell" style="break-inside: unset;"><div class="CodeMirror cm-s-inner CodeMirror-wrap" lang="shell"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 0px; left: 4.16667px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: none;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 0px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: none;"><div class="CodeMirror-measure"><pre><span>xxxxxxxxxx</span></pre></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: 0px; width: 0px;"></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment"># 创建交互式 Pod</span></span></pre></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># kubectl run mypod -it --image=registry:5000/myos:v2009</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">If you don<span class="cm-string">'t see a command prompt, try pressing enter.</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" class="cm-tab-wrap-hack" style="padding-right: 0.1px;">[root@mypod /]<span class="cm-comment"># <span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span>#这里已经进入Pod了</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment"># 另外开一个终端，查询 Pod 信息</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># kubectl get pods</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">NAME &nbsp;  READY &nbsp; STATUS &nbsp;  RESTARTS &nbsp; AGE</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">mypod &nbsp; <span class="cm-number">1</span>/1 &nbsp; &nbsp; Running &nbsp; <span class="cm-number">0</span> &nbsp; &nbsp; &nbsp; &nbsp;  28s</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">myweb &nbsp; <span class="cm-number">1</span>/1 &nbsp; &nbsp; Running &nbsp; <span class="cm-number">0</span> &nbsp; &nbsp; &nbsp; &nbsp;  68s</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" class="cm-tab-wrap-hack" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># kubectl get pods -o name<span class="cm-tab" role="presentation" cm-text="	">   </span><span class="cm-tab" role="presentation" cm-text="	">    </span>#-o name 只显示名字</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">pod/mypod</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">pod/myweb</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" class="cm-tab-wrap-hack" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># kubectl get pods -o wide<span class="cm-tab" role="presentation" cm-text="	">   </span><span class="cm-tab" role="presentation" cm-text="	">    </span>#-o wide 显示更加详细的信息</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">NAME &nbsp;  READY &nbsp; STATUS &nbsp;  RESTARTS &nbsp; &nbsp;  AGE &nbsp; IP &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; NODE</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">mypod &nbsp; <span class="cm-number">1</span>/1 &nbsp; &nbsp; Running &nbsp; <span class="cm-number">1</span> (39s ago) &nbsp; 54s &nbsp; <span class="cm-number">10</span>.244.1.2 &nbsp; node-0001</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">myweb &nbsp; <span class="cm-number">1</span>/1 &nbsp; &nbsp; Running &nbsp; <span class="cm-number">0</span> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 69m &nbsp; <span class="cm-number">10</span>.244.2.2 &nbsp; node-0002</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" class="cm-tab-wrap-hack" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># kubectl get pods myweb -o json<span class="cm-tab" role="presentation" cm-text="	"> </span><span class="cm-tab" role="presentation" cm-text="	">    </span>#以json格式显示</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" class="cm-tab-wrap-hack" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># kubectl get pods myweb -o yaml<span class="cm-tab" role="presentation" cm-text="	"> </span><span class="cm-tab" role="presentation" cm-text="	">    </span>#以yaml格式显示</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">如果想要知道具体可以跟的参数，可以-o <span class="cm-attribute">-l</span> ，执行命令会报错，但是会告诉应该跟哪些指令</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># kubectl get pods myweb -o -l</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">error: unable to match a printer suitable <span class="cm-keyword">for</span> the output format <span class="cm-string">"-l"</span>, allowed formats are: custom-columns,custom-columns-file,go-template,go-template-file,json,jsonpath,jsonpath-as-json,jsonpath-file,name,template,templatefile,wide,yaml</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment"># 查询 myweb pod 的详细信息</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># kubectl describe pod myweb</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">Name: &nbsp; &nbsp; &nbsp; &nbsp; myweb</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">... ...</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">Events:</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">  Type &nbsp;  Reason &nbsp; &nbsp; Age &nbsp;  From &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Message</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;<span class="cm-attribute">----</span> &nbsp; &nbsp;<span class="cm-attribute">------</span> &nbsp; &nbsp; <span class="cm-attribute">----</span> &nbsp; <span class="cm-attribute">----</span> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span class="cm-attribute">-------</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">  Normal  Scheduled  2m11s  default-scheduler  Successfully assigned default/myweb to node-0003</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">  Normal  Pulling &nbsp;  2m10s  kubelet &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;  Pulling image <span class="cm-string">"registry:5000/myos:httpd"</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">  Normal  Pulled &nbsp; &nbsp; 2m4s &nbsp; kubelet &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;  Successfully pulled image <span class="cm-string">"registry:5000/myos:httpd"</span> <span class="cm-keyword">in</span> <span class="cm-number">6</span>.206515294s</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">  Normal  Created &nbsp;  2m2s &nbsp; kubelet &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;  Created container myweb</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">  Normal  Started &nbsp;  2m2s &nbsp; kubelet &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;  Started container myweb</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment"># 查询 myweb pod 的日志信息</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" class="cm-tab-wrap-hack" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># kubectl logs myweb<span class="cm-tab" role="presentation" cm-text="	"> </span><span class="cm-tab" role="presentation" cm-text="	">    </span>#没有信息显示，也是正常的</span></span></pre></div></div></div></div></div><div style="position: absolute; height: 0px; width: 1px; border-bottom: 0px solid transparent; top: 1190px;"></div><div class="CodeMirror-gutters" style="display: none; height: 1190px;"></div></div></div></pre><p><span>查询其他名称空间的 Pod 信息</span></p><pre spellcheck="false" class="md-fences md-end-block ty-contain-cm modeLoaded" lang="shell" style="break-inside: unset;"><div class="CodeMirror cm-s-inner CodeMirror-wrap" lang="shell"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 0px; left: 4.16667px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: none;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 0px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: none;"><div class="CodeMirror-measure"><pre><span>xxxxxxxxxx</span></pre></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: 0px; width: 0px;"></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment"># 查询名称空间</span></span></pre></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># kubectl get namespaces </span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">NAME &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;  STATUS &nbsp; AGE</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">default &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Active &nbsp; 44m</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">kube-node-lease &nbsp; Active &nbsp; 44m</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">kube-public &nbsp; &nbsp; &nbsp; Active &nbsp; 44m</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">kube-system &nbsp; &nbsp; &nbsp; Active &nbsp; 44m</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment"># 查询 kube-system 名称空间下 Pod 信息</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># kubectl -n kube-system get pods</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">NAME &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; READY &nbsp; STATUS &nbsp;  RESTARTS &nbsp; AGE</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">coredns-54b6487f4d-t7f9m &nbsp; &nbsp; &nbsp; &nbsp; <span class="cm-number">1</span>/1 &nbsp; &nbsp; Running &nbsp; <span class="cm-number">0</span> &nbsp; &nbsp; &nbsp; &nbsp;  120m</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">coredns-54b6487f4d-v2zbg &nbsp; &nbsp; &nbsp; &nbsp; <span class="cm-number">1</span>/1 &nbsp; &nbsp; Running &nbsp; <span class="cm-number">0</span> &nbsp; &nbsp; &nbsp; &nbsp;  120m</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">etcd-master &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-number">1</span>/1 &nbsp; &nbsp; Running &nbsp; <span class="cm-number">0</span> &nbsp; &nbsp; &nbsp; &nbsp;  120m</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">kube-apiserver-master &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-number">1</span>/1 &nbsp; &nbsp; Running &nbsp; <span class="cm-number">0</span> &nbsp; &nbsp; &nbsp; &nbsp;  120m</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">kube-controller-manager-master &nbsp; <span class="cm-number">1</span>/1 &nbsp; &nbsp; Running &nbsp; <span class="cm-number">0</span> &nbsp; &nbsp; &nbsp; &nbsp;  120m</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">kube-flannel-ds-8x4hq &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-number">1</span>/1 &nbsp; &nbsp; Running &nbsp; <span class="cm-number">0</span> &nbsp; &nbsp; &nbsp; &nbsp;  111m</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">kube-flannel-ds-c5rkv &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-number">1</span>/1 &nbsp; &nbsp; Running &nbsp; <span class="cm-number">0</span> &nbsp; &nbsp; &nbsp; &nbsp;  111m</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">kube-flannel-ds-sk2gj &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-number">1</span>/1 &nbsp; &nbsp; Running &nbsp; <span class="cm-number">0</span> &nbsp; &nbsp; &nbsp; &nbsp;  111m</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">kube-flannel-ds-v26sx &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-number">1</span>/1 &nbsp; &nbsp; Running &nbsp; <span class="cm-number">0</span> &nbsp; &nbsp; &nbsp; &nbsp;  111m</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">kube-proxy-6gprw &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span class="cm-number">1</span>/1 &nbsp; &nbsp; Running &nbsp; <span class="cm-number">0</span> &nbsp; &nbsp; &nbsp; &nbsp;  115m</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">kube-proxy-6tfn8 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span class="cm-number">1</span>/1 &nbsp; &nbsp; Running &nbsp; <span class="cm-number">0</span> &nbsp; &nbsp; &nbsp; &nbsp;  115m</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">kube-proxy-9t5ln &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span class="cm-number">1</span>/1 &nbsp; &nbsp; Running &nbsp; <span class="cm-number">0</span> &nbsp; &nbsp; &nbsp; &nbsp;  115m</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">kube-proxy-f956k &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span class="cm-number">1</span>/1 &nbsp; &nbsp; Running &nbsp; <span class="cm-number">0</span> &nbsp; &nbsp; &nbsp; &nbsp;  120m</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">kube-scheduler-master &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-number">1</span>/1 &nbsp; &nbsp; Running &nbsp; <span class="cm-number">0</span> &nbsp; &nbsp; &nbsp; &nbsp;  120m</span></pre></div></div></div></div></div><div style="position: absolute; height: 0px; width: 1px; border-bottom: 0px solid transparent; top: 642px;"></div><div class="CodeMirror-gutters" style="display: none; height: 642px;"></div></div></div></pre><h4><a name="排错练习案例2" class="md-header-anchor"></a><span>排错练习(案例2)</span></h4><pre spellcheck="false" class="md-fences md-end-block ty-contain-cm modeLoaded" lang="shell" style="break-inside: unset;"><div class="CodeMirror cm-s-inner CodeMirror-wrap" lang="shell"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 0px; left: 4.16667px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: none;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 0px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: none;"><div class="CodeMirror-measure"><pre><span>xxxxxxxxxx</span></pre></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: 0px; width: 0px;"></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">注：如果在复制粘贴过程中出现格式问题，可以在末行模式下执行: <span class="cm-keyword">set</span> paste 调整</span></pre></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">此案例注重排错排错排错，先不用理解含义，请先直接复制粘贴，使用排错三兄弟找出原因</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># vim pod1.yaml </span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-attribute">---</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">kind: Pod</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">apiVersion: v1</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">metadata:</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">  name: pod1</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">spec:</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">  containers:</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;<span class="cm-attribute">-</span> name: linux</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;  image: registry:5000/myOs:httpd</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># kubectl apply -f pod1.yaml</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">pod/pod1 created</span></pre></div></div></div></div></div><div style="position: absolute; height: 0px; width: 1px; border-bottom: 0px solid transparent; top: 411px;"></div><div class="CodeMirror-gutters" style="display: none; height: 411px;"></div></div></div></pre><h3><a name="管理命令三）" class="md-header-anchor"></a><span>管理命令（三）</span></h3><figure><table><thead><tr><th><strong><span>子命令</span></strong></th><th><strong><span>说明</span></strong></th><th><strong><span>备注</span></strong></th></tr></thead><tbody><tr><td><span>exec</span></td><td><span>在某一个容器内执行特定的命令</span></td><td><span>可选参数:  -c 容器名称</span></td></tr><tr><td><span>cp</span></td><td><span>在容器和宿主机之间拷贝文件或目录</span></td><td><span>可选参数:  -c 容器名称</span></td></tr><tr><td><span>delete</span></td><td><span>删除资源对象</span></td><td><span>可选参数:  -f 文件名称</span></td></tr><tr><td><span>create</span></td><td><span>创建资源对象</span></td><td><span>必选参数:  -f 文件名称</span></td></tr><tr><td><span>apply</span></td><td><span>（创建/更新）资源对象</span></td><td><span>必选参数:  -f 文件名称</span></td></tr></tbody></table></figure><h4><a name="命令示例-n107" class="md-header-anchor"></a><span>命令示例</span></h4><pre spellcheck="false" class="md-fences md-end-block ty-contain-cm modeLoaded" lang="shell" style="break-inside: unset;"><div class="CodeMirror cm-s-inner CodeMirror-wrap" lang="shell"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 0px; left: 4.16667px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: none;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 0px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: none;"><div class="CodeMirror-measure"><pre><span>xxxxxxxxxx</span></pre></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: 0px; width: 0px;"></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">exec连接myweb执行命令</span></pre></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-attribute">--</span> 选项终止符，后面的命令和前面的无关</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># kubectl exec -it myweb -- /bin/bash</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">拷贝myweb中的数据到本地</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># kubectl cp myweb:/var/www ./www</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">拷贝本地数据到myweb中</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># kubectl cp img.sh myweb:/root/</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># kubectl exec -it myweb -- ls /root</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">img.sh</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">delete删除资源对象，通过资源对象文件删除</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># kubectl delete -f pod1.yaml </span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">通过资源对象名字删除</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># kubectl delete pod mypod </span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">删除所有的pod，delete后面不需要加pod，因为-o name 已经查到</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># kubectl get pods -o name</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">pod/myweb</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># kubectl delete  $(kubectl get pods -o name)</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">create创建资源对象，创建名称空间abc，并删除</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># kubectl create namespace abc</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master ~]<span class="cm-comment"># kubectl delete namespaces abc</span></span></pre></div></div></div></div></div><div style="position: absolute; height: 0px; width: 1px; border-bottom: 0px solid transparent; top: 668px;"></div><div class="CodeMirror-gutters" style="display: none; height: 668px;"></div></div></div></pre><h3><a name="pod资源对象文件" class="md-header-anchor"></a><span>Pod资源对象文件</span></h3><h4><a name="使用资源对象文件定义pod" class="md-header-anchor"></a><span>使用资源对象文件定义Pod</span></h4><pre spellcheck="false" class="md-fences md-end-block ty-contain-cm modeLoaded" lang="yaml" style="break-inside: unset;"><div class="CodeMirror cm-s-inner CodeMirror-wrap" lang="yaml"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 0px; left: 4.16667px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: none;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 0px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: none;"><div class="CodeMirror-measure"><pre><span>xxxxxxxxxx</span></pre></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: 0px; width: 0px;"></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">五大核心字段：</span></pre></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" class="cm-tab-wrap-hack" style="padding-right: 0.1px;"><span class="cm-def">---</span><span class="cm-tab" role="presentation" cm-text="	"> </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-atom">kind</span><span class="cm-meta">:<span class="cm-tab" role="presentation" cm-text="	">   </span><span class="cm-tab" role="presentation" cm-text="	">    </span></span><span class="cm-comment">#资源对象类型，使用kubectl api-resources查看</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-atom">apiVersion</span><span class="cm-meta">:<span class="cm-tab" role="presentation" cm-text="	"> </span></span><span class="cm-comment">#版本，使用kubectl api-resources查看</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-atom">metadata</span><span class="cm-meta">:<span class="cm-tab" role="presentation" cm-text="	">   </span></span><span class="cm-comment">#元数据，该资源对象的属性信息，比如名字，标签，资源对象的注解说明等</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-atom">spec</span><span class="cm-meta">:<span class="cm-tab" role="presentation" cm-text="	">   </span><span class="cm-tab" role="presentation" cm-text="	">    </span></span><span class="cm-comment">#资源的定义，规约，定义资源的详细信息</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-atom">status</span><span class="cm-meta">:<span class="cm-tab" role="presentation" cm-text="	"> </span><span class="cm-tab" role="presentation" cm-text="	">    </span></span><span class="cm-comment">#记录资源的状态，不用配置，如创建pod是成功，失败，还是有报错等</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-meta">[</span>root@master ~<span class="cm-meta">]</span># vim myweb.yaml</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-def">---</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-atom">kind</span><span class="cm-meta">: </span>Pod<span class="cm-tab" role="presentation" cm-text="	">   </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-comment">#资源对象类型</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-atom">apiVersion</span><span class="cm-meta">: </span>v1<span class="cm-tab" role="presentation" cm-text="	">  </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span> <span class="cm-comment">#版本</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-atom">metadata</span><span class="cm-meta">:<span class="cm-tab" role="presentation" cm-text="	">   </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span></span><span class="cm-comment">#元数据</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-atom">  name</span><span class="cm-meta">: </span>myweb<span class="cm-tab" role="presentation" cm-text="	">   </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-comment">#pod名字</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-atom">spec</span><span class="cm-meta">:</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-atom">  containers</span><span class="cm-meta">:<span class="cm-tab" role="presentation" cm-text="	">   </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span> &nbsp; </span><span class="cm-comment">#创建容器</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-meta">  - </span><span class="cm-atom">name</span><span class="cm-meta">: </span>apache<span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span> &nbsp; <span class="cm-comment">#容器名字，容器可以有多个，数组表示</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-atom"> &nbsp;  image</span><span class="cm-meta">: </span>registry<span class="cm-meta">:</span>5000/myos<span class="cm-meta">:</span>httpd<span class="cm-tab" role="presentation" cm-text="	"> </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-comment">#使用镜像</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-atom">status</span><span class="cm-meta">: {}</span><span class="cm-tab" role="presentation" cm-text="	">  </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span> &nbsp;<span class="cm-comment">#不用配置，为空，或者删掉</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-meta">[</span>root@master ~<span class="cm-meta">]</span># kubectl apply -f myweb.yaml </span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-meta">[</span>root@master ~<span class="cm-meta">]</span># kubectl get pods</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">NAME &nbsp;  READY &nbsp; STATUS &nbsp;  RESTARTS &nbsp; AGE</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">myweb &nbsp; 1/1 &nbsp; &nbsp; Running &nbsp; 0 &nbsp; &nbsp; &nbsp; &nbsp;  2m33s</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">通过kubectl explain 查找资源对象文件参数，已经对应的层级</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-meta">[</span>root@master ~<span class="cm-meta">]</span># kubectl explain Pod</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-meta">[</span>root@master ~<span class="cm-meta">]</span># kubectl explain Pod.spec</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-meta">[</span>root@master ~<span class="cm-meta">]</span># kubectl explain Pod.spec.containers</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">帕斯卡命名法</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">例如资源对象NodePort</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-atom">type</span><span class="cm-meta">: </span>NodePort</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-atom">nodePort</span><span class="cm-meta">: </span><span class="cm-number">30010</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">key： 小驼峰</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">value：大驼峰</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">使用资源对象文件启动一个交互式的容器</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">注：需要分配终端，否则会启动失败，stdin交互，tty终端</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-meta">[</span>root@master ~<span class="cm-meta">]</span># mkdir /root/config; cd /root/config </span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-meta">[</span>root@master config<span class="cm-meta">]</span># cp /root/myweb.yaml mypod.yaml</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-meta">[</span>root@master config<span class="cm-meta">]</span># vim mypod.yaml </span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-def">---</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-atom">kind</span><span class="cm-meta">: </span>Pod</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-atom">apiVersion</span><span class="cm-meta">: </span>v1</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-atom">metadata</span><span class="cm-meta">:</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-atom">  name</span><span class="cm-meta">: </span>mypod &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span class="cm-comment">#更改pod名字mypod</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-atom">spec</span><span class="cm-meta">:</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-atom">  containers</span><span class="cm-meta">:</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-meta">  - </span><span class="cm-atom">name</span><span class="cm-meta">: </span>web &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-comment">#更改容器名字</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-atom"> &nbsp;  image</span><span class="cm-meta">: </span>registry<span class="cm-meta">:</span>5000/myos<span class="cm-meta">:</span>v2009 &nbsp;<span class="cm-comment">#更改使用myos:v2009镜像</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-atom"> &nbsp;  stdin</span><span class="cm-meta">: </span>true &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-comment">#新添加，启用交互式</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-atom"> &nbsp;  tty</span><span class="cm-meta">: </span>true &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-comment">#新添加，分配终端</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-atom">status</span><span class="cm-meta">: {}</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-meta">[</span>root@master config<span class="cm-meta">]</span># kubectl apply -f mypod.yaml </span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-meta">[</span>root@master config<span class="cm-meta">]</span># kubectl get pods</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">NAME &nbsp;  READY &nbsp; STATUS &nbsp;  RESTARTS &nbsp; AGE</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">mypod &nbsp; 1/1 &nbsp; &nbsp; Running &nbsp; 0 &nbsp; &nbsp; &nbsp; &nbsp;  5s</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">pod在执行删除时会有宽限期，主要是生产环境中有业务运行，业务不能中断，可以设置宽限期，等程序执行完毕之后再关闭删除容器</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-meta">[</span>root@master config<span class="cm-meta">]</span># kubectl delete -f mypod.yaml </span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">pod <span class="cm-string">"mypod"</span> deleted</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-meta">[</span>root@master config<span class="cm-meta">]</span># vim mypod.yaml </span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-def">...</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-atom">spec</span><span class="cm-meta">:</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-atom">  terminationGracePeriodSeconds</span><span class="cm-meta">: </span>0 &nbsp; <span class="cm-comment">#新添加，0为禁用宽限期</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-atom">  containers</span><span class="cm-meta">:</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-meta">  - </span><span class="cm-atom">name</span><span class="cm-meta">: </span>web &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-comment">#容器名字</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-def">...</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-meta">[</span>root@master config<span class="cm-meta">]</span># kubectl apply -f mypod.yaml </span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-meta">[</span>root@master config<span class="cm-meta">]</span># kubectl get pods</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">NAME &nbsp;  READY &nbsp; STATUS &nbsp;  RESTARTS &nbsp; AGE</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">mypod &nbsp; 1/1 &nbsp; &nbsp; Running &nbsp; 0 &nbsp; &nbsp; &nbsp; &nbsp;  5s</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-meta">[</span>root@master config<span class="cm-meta">]</span># kubectl delete -f mypod.yaml <span class="cm-tab" role="presentation" cm-text="	"> </span><span class="cm-comment">#删除的很快</span></span></pre></div></div></div></div></div><div style="position: absolute; height: 0px; width: 1px; border-bottom: 0px solid transparent; top: 2025px;"></div><div class="CodeMirror-gutters" style="display: none; height: 2025px;"></div></div></div></pre><p>&nbsp;</p><pre spellcheck="false" class="md-fences md-end-block ty-contain-cm modeLoaded" lang="shell" style="break-inside: unset;"><div class="CodeMirror cm-s-inner CodeMirror-wrap" lang="shell"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 0px; left: 4.16667px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: none;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 0px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: none;"><div class="CodeMirror-measure"><pre><span>xxxxxxxxxx</span></pre></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: 0px; width: 0px;"></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">容器重启策略：至于设置策略，根据具体应用定义</span></pre></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">Always：总是重启容器，如httpd，持续提供服务，</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">Never：从不重启，执行的无关紧要命令，如删除一些文件</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">OnFailure：程序执行成功，不重启；程序执行失败，重启，使用<span class="cm-def">$?</span>判断，统计分析计算</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master config]<span class="cm-comment"># kubectl delete -f mypod.yaml </span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master config]<span class="cm-comment"># vim mypod.yaml </span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">...</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">  restartPolicy: Never &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-comment">#新添加，从不重启</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">  containers:</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;<span class="cm-attribute">-</span> name: web &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-comment">#容器名字</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">...</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master config]<span class="cm-comment"># kubectl apply -f mypod.yaml </span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" class="cm-tab-wrap-hack" style="padding-right: 0.1px;">[root@master config]<span class="cm-comment"># kubectl get pods<span class="cm-tab" role="presentation" cm-text="	">  </span>-w<span class="cm-tab" role="presentation" cm-text="	">  </span></span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">NAME &nbsp;  READY &nbsp; STATUS &nbsp; &nbsp;  RESTARTS &nbsp; AGE</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">mypod &nbsp; <span class="cm-number">0</span>/1 &nbsp; &nbsp; Completed &nbsp; <span class="cm-number">0</span> &nbsp; &nbsp; &nbsp; &nbsp;  40s</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master config]<span class="cm-comment"># kubectl delete -f mypod.yaml </span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master config]<span class="cm-comment"># vim mypod.yaml </span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">...</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">  restartPolicy: Always<span class="cm-tab" role="presentation" cm-text="	"> </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-comment">#新添加，容器重启策略Always总是重启</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">  containers:</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;<span class="cm-attribute">-</span> name: web</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;  image: registry:5000/myos:v2009</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;  stdin: <span class="cm-atom">true</span> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-comment">#删除</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;  tty: <span class="cm-atom">true</span> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-comment">#删除</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">status: {}</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master config]<span class="cm-comment"># kubectl apply -f mypod.yaml </span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">pod/mypod created</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" class="cm-tab-wrap-hack" style="padding-right: 0.1px;">[root@master config]<span class="cm-comment"># kubectl get pods -w <span class="cm-tab" role="presentation" cm-text="	">  </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span>#持续查看，状态有变化</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">NAME &nbsp;  READY &nbsp; STATUS &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; RESTARTS &nbsp; &nbsp;  AGE</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">mypod &nbsp; <span class="cm-number">0</span>/1 &nbsp; &nbsp; CrashLoopBackOff &nbsp; <span class="cm-number">1</span> (9s ago) &nbsp;  10s</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">myweb &nbsp; <span class="cm-number">1</span>/1 &nbsp; &nbsp; Running &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-number">3</span> (56m ago) &nbsp; 17h</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">mypod &nbsp; <span class="cm-number">0</span>/1 &nbsp; &nbsp; Completed &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-number">2</span> (14s ago) &nbsp; 15s</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">mypod &nbsp; <span class="cm-number">0</span>/1 &nbsp; &nbsp; CrashLoopBackOff &nbsp; <span class="cm-number">2</span> (15s ago) &nbsp; 29s</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">mypod &nbsp; <span class="cm-number">0</span>/1 &nbsp; &nbsp; Completed &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-number">3</span> (27s ago) &nbsp; 41s</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">mypod &nbsp; <span class="cm-number">0</span>/1 &nbsp; &nbsp; CrashLoopBackOff &nbsp; <span class="cm-number">3</span> (14s ago) &nbsp; 54s</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">镜像下载策略：imagePullPolicy</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">IfNotPresent：<span class="cm-tab" role="presentation" cm-text="	">   </span><span class="cm-comment">#默认值，优先使用本地缓存镜像，本地没有使用仓库中的</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">Always：<span class="cm-tab" role="presentation" cm-text="	"> </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-comment">#只使用仓库中的镜像</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">Never：<span class="cm-tab" role="presentation" cm-text="	">  </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-comment">#只使用本地缓存的镜像</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">测试：registry主机停止私有镜像服务</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@registry ~]<span class="cm-comment"># systemctl stop docker-distribution.service </span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master config]<span class="cm-comment"># vim mypod.yaml </span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">....</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;  image: registry:5000/myos:httpd &nbsp;<span class="cm-comment">#使用myos:httpd镜像</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;  imagePullPolicy: Always &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-comment">#新添加，镜像下载策略,只使用仓库中的镜像</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">status: {}</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master config]<span class="cm-comment"># kubectl delete -f mypod.yaml </span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master config]<span class="cm-comment"># kubectl apply -f mypod.yaml </span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" class="cm-tab-wrap-hack" style="padding-right: 0.1px;">[root@master config]<span class="cm-comment"># kubectl get pods<span class="cm-tab" role="presentation" cm-text="	">  </span><span class="cm-tab" role="presentation" cm-text="	">    </span>#下载失败</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">NAME &nbsp;  READY &nbsp; STATUS &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; RESTARTS &nbsp; AGE</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">mypod &nbsp; <span class="cm-number">0</span>/1 &nbsp; &nbsp; ErrImagePull &nbsp; <span class="cm-number">0</span> &nbsp; &nbsp; &nbsp; &nbsp;  5s</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">把镜像下载策略改为 IfNotPresent 测试</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master config]<span class="cm-comment"># vim mypod.yaml </span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">...</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;  image: registry:5000/myos:httpd &nbsp;<span class="cm-comment">#使用myos:httpd镜像</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;  imagePullPolicy: IfNotPresent &nbsp; &nbsp;<span class="cm-comment">#更改容器重启策略，优先使用本地缓存镜像</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">status: {}</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master config]<span class="cm-comment"># kubectl delete -f mypod.yaml </span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master config]<span class="cm-comment"># kubectl apply -f mypod.yaml </span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" class="cm-tab-wrap-hack" style="padding-right: 0.1px;">[root@master config]<span class="cm-comment"># kubectl get pods<span class="cm-tab" role="presentation" cm-text="	">  </span><span class="cm-tab" role="presentation" cm-text="	">    </span>#成功</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">NAME &nbsp;  READY &nbsp; STATUS &nbsp;  RESTARTS &nbsp; AGE</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">mypod &nbsp; <span class="cm-number">1</span>/1 &nbsp; &nbsp; Running &nbsp; <span class="cm-number">0</span> &nbsp; &nbsp; &nbsp; &nbsp;  3s</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">恢复registry主机镜像仓库服务，启动</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@registry ~]<span class="cm-comment"># systemctl start docker-distribution.service </span></span></pre></div></div></div></div></div><div style="position: absolute; height: 0px; width: 1px; border-bottom: 0px solid transparent; top: 1835px;"></div><div class="CodeMirror-gutters" style="display: none; height: 1835px;"></div></div></div></pre><h4><a name="如何创建多容器-pod" class="md-header-anchor"></a><span>如何创建多容器 Pod</span></h4><pre spellcheck="false" class="md-fences md-end-block ty-contain-cm modeLoaded" lang="shell" style="break-inside: unset;"><div class="CodeMirror cm-s-inner CodeMirror-wrap" lang="shell"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 0px; left: 4.16667px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: none;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 0px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: none;"><div class="CodeMirror-measure"><pre><span>xxxxxxxxxx</span></pre></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: 0px; width: 0px;"></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master config]<span class="cm-comment"># vim mypod.yaml </span></span></pre></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">...</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">  containers:</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;<span class="cm-attribute">-</span> name: web &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;  image: registry:5000/myos:httpd &nbsp;</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;  imagePullPolicy: IfNotPresent &nbsp; &nbsp;</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;<span class="cm-attribute">-</span> name: php &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-comment">#新添加,phpfpm容器，名字为php</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;  image: registry:5000/myos:phpfpm <span class="cm-comment">#使用myos:phpfpm镜像</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">status: {}</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master config]<span class="cm-comment"># kubectl delete -f  mypod.yaml </span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master config]<span class="cm-comment"># kubectl apply -f mypod.yaml </span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" class="cm-tab-wrap-hack" style="padding-right: 0.1px;">[root@master config]<span class="cm-comment"># kubectl get pods<span class="cm-tab" role="presentation" cm-text="	">  </span><span class="cm-tab" role="presentation" cm-text="	">    </span>#有两个容器</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">NAME &nbsp;  READY &nbsp; STATUS &nbsp;  RESTARTS &nbsp; AGE</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">mypod &nbsp; <span class="cm-number">2</span>/2 &nbsp; &nbsp; Running &nbsp; <span class="cm-number">0</span> &nbsp; &nbsp; &nbsp; &nbsp;  4s</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">由于是一个pod中创建多个容器，此时若想进入pod中的容器，需要指定名字</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" class="cm-tab-wrap-hack" style="padding-right: 0.1px;">[root@master config]<span class="cm-comment"># kubectl logs mypod <span class="cm-tab" role="presentation" cm-text="	">   </span>#web php容器名二选一进入</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">error: a container name must be specified <span class="cm-keyword">for</span> pod mypod, choose one of: [web php]</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" class="cm-tab-wrap-hack" style="padding-right: 0.1px;">[root@master config]<span class="cm-comment"># kubectl logs mypod -c web<span class="cm-tab" role="presentation" cm-text="	"> </span><span class="cm-tab" role="presentation" cm-text="	">    </span>#查看日志</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" class="cm-tab-wrap-hack" style="padding-right: 0.1px;">[root@master config]<span class="cm-comment"># kubectl logs mypod -c php<span class="cm-tab" role="presentation" cm-text="	"> </span><span class="cm-tab" role="presentation" cm-text="	">    </span>#查看日志</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master config]<span class="cm-comment"># kubectl exec -it mypod -c web -- /bin/bash</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" class="cm-tab-wrap-hack" style="padding-right: 0.1px;">[root@mypod html]<span class="cm-comment"># ss -antlp<span class="cm-tab" role="presentation" cm-text="	">    </span>#有9000和80</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@mypod html]<span class="cm-comment"># exit</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master config]<span class="cm-comment"># kubectl exec -it mypod -c php -- /bin/bash</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@mypod /]<span class="cm-comment"># ss -antlp &nbsp; &nbsp; &nbsp; &nbsp; #有9000和80 </span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@mypod /]<span class="cm-comment"># exit</span></span></pre></div></div></div></div></div><div style="position: absolute; height: 0px; width: 1px; border-bottom: 0px solid transparent; top: 778px;"></div><div class="CodeMirror-gutters" style="display: none; height: 778px;"></div></div></div></pre><h4><a name="创建静态pod" class="md-header-anchor"></a><span>创建静态pod</span></h4><pre spellcheck="false" class="md-fences md-end-block ty-contain-cm modeLoaded" lang="yaml" style="break-inside: unset;"><div class="CodeMirror cm-s-inner CodeMirror-wrap" lang="yaml"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 0px; left: 3.99306px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: none;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 0px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: none;"><div class="CodeMirror-measure"><pre><span>xxxxxxxxxx</span></pre></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: 0px; width: 0px;"></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tab" role="presentation" cm-text="	">    </span>静态Pod是一种由kubelet直接管理的Pod，由kubelet通过读取主机上的文件来创建和管理。它们不包含在Kubernetes API对象的管理中</span></pre></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">在node-0003主机创建一个静态pod，httpd的服务，master节点访问，测试完成删除pod</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-meta">[</span>root@node-0003 ~<span class="cm-meta">]</span># cat /var/lib/kubelet/config.yaml | grep static</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-atom">staticPodPath</span><span class="cm-meta">: </span>/etc/kubernetes/manifests<span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-comment">#静态pod路径</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-meta">[</span>root@node-0003 manifests<span class="cm-meta">]</span># vim /etc/kubernetes/manifests/httpd.yaml</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-def">---</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-atom">kind</span><span class="cm-meta">: </span>Pod</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-atom">apiVersion</span><span class="cm-meta">: </span>v1</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-atom">metadata</span><span class="cm-meta">:</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-atom">  name</span><span class="cm-meta">: </span>httpd</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-atom">spec</span><span class="cm-meta">:</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-atom">  containers</span><span class="cm-meta">:</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-meta">  - </span><span class="cm-atom">name</span><span class="cm-meta">: </span>httpd</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-atom"> &nbsp;  image</span><span class="cm-meta">: </span>registry<span class="cm-meta">:</span>5000/myos<span class="cm-meta">:</span>httpd</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-atom">status</span><span class="cm-meta">: {}</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-meta">[</span>root@master config<span class="cm-meta">]</span># kubectl get pods -o wide</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">NAME &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;  READY &nbsp; STATUS &nbsp;  RESTARTS &nbsp; AGE &nbsp; IP &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;  NODE &nbsp; &nbsp; &nbsp;  NOMINATED NODE &nbsp; READINESS GATES</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">httpd-node-0003 &nbsp; 1/1 &nbsp; &nbsp; Running &nbsp; 0 &nbsp; &nbsp; &nbsp; &nbsp;  35s &nbsp; 10.244.2.11 &nbsp; node-0003 &nbsp; &lt;none&gt; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;none&gt;</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">mypod &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2/2 &nbsp; &nbsp; Running &nbsp; 0 &nbsp; &nbsp; &nbsp; &nbsp;  36m &nbsp; 10.244.2.10 &nbsp; node-0003 &nbsp; &lt;none&gt; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;none&gt;</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">测试httpd-node-0003，httpd服务正常可以访问</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-meta">[</span>root@master config<span class="cm-meta">]</span># curl 10.244.2.11</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">Welcome to The Apache.</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">node-0003删除httpd.yaml，master主机查看，已经看不到</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-meta">[</span>root@node-0003 manifests<span class="cm-meta">]</span># rm -rf /etc/kubernetes/manifests/httpd.yaml </span></pre></div></div></div></div></div><div style="position: absolute; height: 0px; width: 1px; border-bottom: 0px solid transparent; top: 825px;"></div><div class="CodeMirror-gutters" style="display: none; height: 825px;"></div></div></div></pre><h4><a name="自定义命令" class="md-header-anchor"></a><span>自定义命令</span></h4><p><span>让pod和用户编写的脚本相结合使用</span></p><pre spellcheck="false" class="md-fences md-end-block ty-contain-cm modeLoaded" lang="shell" style="break-inside: unset;"><div class="CodeMirror cm-s-inner CodeMirror-wrap" lang="shell"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 0px; left: 4.16667px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: none;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 0px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: none;"><div class="CodeMirror-measure"><pre><span>xxxxxxxxxx</span></pre></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: 0px; width: 0px;"></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">简单命令，让终端睡5秒再执行</span></pre></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master config]<span class="cm-comment"># cp /root/myweb.yaml mycmd.yaml</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master config]<span class="cm-comment"># vim mycmd.yaml </span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-attribute">---</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">kind: Pod</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">apiVersion: v1</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">metadata:</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">  name: mycmd</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">spec:</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">  containers:</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;<span class="cm-attribute">-</span> name: mycmd</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;  image: registry:5000/myos:v2009</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;  command: [<span class="cm-string">"sleep"</span>]</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;  args:</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; <span class="cm-attribute">-</span> <span class="cm-string">"5"</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">status: {}</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master config]<span class="cm-comment"># kubectl apply -f mycmd.yaml </span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master config]<span class="cm-comment"># kubectl get pod -w</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">NAME &nbsp;  READY &nbsp; STATUS &nbsp;  RESTARTS &nbsp; AGE</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">mycmd &nbsp; <span class="cm-number">1</span>/1 &nbsp; &nbsp; Running &nbsp; <span class="cm-number">0</span> &nbsp; &nbsp; &nbsp; &nbsp;  5s</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">mypod &nbsp; <span class="cm-number">2</span>/2 &nbsp; &nbsp; Running &nbsp; <span class="cm-number">0</span> &nbsp; &nbsp; &nbsp; &nbsp;  65m</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">mycmd &nbsp; <span class="cm-number">0</span>/1 &nbsp; &nbsp; Completed &nbsp; <span class="cm-number">0</span> &nbsp; &nbsp; &nbsp; &nbsp;  6s</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">mycmd &nbsp; <span class="cm-number">1</span>/1 &nbsp; &nbsp; Running &nbsp; &nbsp; <span class="cm-number">1</span> (1s ago) &nbsp; 7s</span></pre></div></div></div></div></div><div style="position: absolute; height: 0px; width: 1px; border-bottom: 0px solid transparent; top: 642px;"></div><div class="CodeMirror-gutters" style="display: none; height: 642px;"></div></div></div></pre><p><span>嵌入式脚本</span></p><pre spellcheck="false" class="md-fences md-end-block ty-contain-cm modeLoaded md-focus" lang="shell" style="break-inside: unset;"><div class="CodeMirror cm-s-inner CodeMirror-wrap" lang="shell"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 0px; left: 4.16667px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: none;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 0px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: none;"><div class="CodeMirror-measure"><span><span>​</span>x</span></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: 0px; width: 0px;"></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master config]<span class="cm-comment"># vim mycmd.yaml</span></span></pre></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-attribute">---</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">kind: Pod</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">apiVersion: v1</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">metadata:</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">  name: mycmd</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">spec:</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">  containers:</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;<span class="cm-attribute">-</span> name: mycmd</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;  image: registry:5000/myos:v2009</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;  command: [<span class="cm-string">"/bin/bash"</span>] &nbsp; &nbsp; &nbsp;<span class="cm-comment">#调用bash命令,相当于#!/bin/bash</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;  args: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span class="cm-comment">#设置命令的参数</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; <span class="cm-attribute">-</span> <span class="cm-attribute">-c</span> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span class="cm-comment">#从字符串中读取命令</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; <span class="cm-attribute">-</span> | &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-comment">#以下多行字符串保留原格式</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; <span class="cm-keyword">while</span> <span class="cm-atom">true</span>;do &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-comment">#脚本指令，while true 死循环，每隔5秒输出hello world</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-builtin">sleep</span> <span class="cm-number">5</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-builtin">echo</span> <span class="cm-string">"hello world."</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; <span class="cm-keyword">done</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">status: {}</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="">​</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master config]<span class="cm-comment"># kubectl delete -f mycmd.yaml </span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master config]<span class="cm-comment"># kubectl apply -f mycmd.yaml </span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" class="cm-tab-wrap-hack" style="padding-right: 0.1px;">[root@master config]<span class="cm-comment"># kubectl logs mycmd <span class="cm-tab" role="presentation" cm-text="	">   </span>#查看结果</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">hello world.</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">hello world.</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">hello world.</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">hello world.</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">hello world.</span></pre><div class="" style="position: relative;"><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">[root@master config]<span class="cm-comment"># kubectl delete -f mycmd.yaml </span></span></pre></div></div></div></div></div></div><div style="position: absolute; height: 0px; width: 1px; border-bottom: 0px solid transparent; top: 747px;"></div><div class="CodeMirror-gutters" style="display: none; height: 747px;"></div></div></div></pre></div>
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